Book-sewing machine



R. E. ACKLEYy 1,788,958 BOOK SEWPNGMACHINVE A Filed Sept. 14, 192.8 4 Sheets-Sheet 1 Jan. 13, 1931.

Jan. l.13, 1931. RUCKLY 1,788,968.

' v yBooK SEWING MACHINE v y Filed sept. 514, 1928 sheets-'Sheet 3 Illlllll Il ll Il ll IIT! lll ll Jan.. 13, 1931. R. E. ACKLEY 1,788,968

' BooK SEWING MACHINE l Filedsept. 14, 192e 4 sheets-sheet 4 UNITED "STAT RAYMOND Patented Jan. 13, 1931 ES PATENT oFF-ms f E ACKLEY, or CHICAGO, ILLINOIS, AssIGNoa To n. a. DONNELLEY'AND COMPANY, or CHICAGO, ILLINOIS, A CORPORATION or ILLINOIS eoNs BOOK-SEWING MACHINE Application tiledk September 14, 1928. Serial No. 305,968.

My invention relates more particularly tov machines for sewing together the sheets from which books are to be made.

One of my objects is to provide a construction of machine whereby the output from machines of this Vgeneral charactermay be 1ncreased.

Another object is to provide a machine for this purpose which, in its operation, will not be liable to impairment.

Another object is to provide a book-'sewing machine which Ywill sew the books by'a lock stitch located along one edge of the book.4

AAnother'object is to provide mechanism by which the books are fed in accurately timed relation tov the operation of the f stltchlng mechanism tages, the ehmination of an unslghly groove `across the end of the book produced, in the trimming operation, by the cutting through the stitch when the first stitch through the bookis not located at the proper diStnce from the end of the book.

Another object is to rovide means, cooperating with the need e, 'for preliminarily piercing the work to avoidundue stress on the needle and ermit of the free withdrawal of the needle rom the work; and other objects as will be manifest' from the following description. t

Referring to the accompanying drawm sigure 1 is a plan view, with certain yparts of the sewing-machineproper broken away, of a machine embodying my invention.

Figure 2 is a view in side elevation ofthe machine.

Figure 3 is a similar view `of the machine but viewing it in another direction, a yportion of the work feeder being shown in transverse section. g, n

Figure 4 is a viewin sectional elevation of reciprocating and rotating awl-mechanism forming a part of the machine.

Figure 5 is a plansectional view of a detail of the mechanism for rotating the awl, V'the section being taken at the line 5`on Fig. 6 and viewed in the direction of thearrows.

Figure 6 is a section taken at the line 6-6 presenting, among other advan-l on Fig. 5 and viewed in the diretionof the` Figure 7 is a plan view of one ofthe ele- 'i ments of the book-,feeding mechanism the dotted lines together with the full lines representing the element by a developed view. Y.

Figure 8 is a vview in end elevationofthe element of Fig. 7; and Y. Figure 9, a perspective view ofthe presserfootofthe sewing. machine. s

The particular.illustrated embodiment .of orgmagav my invention comprises a hopper, zlne 10, for the books tobesewed and mountedv lat its open bottom on the bed' 11 of ithe machine.

The books are placed in the hopperto ex-A ktend in a vertical s eries with' .the edges thereof to be stitched extending lengthwise of A the bed, the pile of booksv thus presented restingon the bed.v

rllhe front -end of the hopper. and'fromv which the books areafed, in succession as hereinafter described, contains, at its lower,- -edge, a slot 12 of a height slightly reater than Vthe thicknessof the book and t rough which the lowermost book passes.

The feeding of the books, one thereof bey mg shown at 13, from @the hopper y10 and'l throughthe machine, is effected by anintermittently-operating conveying mechanism comprising an endless conveyor chain. 14, supported,and driven, bys'prockets 15 and 16 provided on shafts 17 and 18 onthe frame.

of the machine. The chain 14 extends length-y y,wiseof the machine and is provided at inter-Y vals withbook feeding lugs, shown as in the form of angle irons, which project upwardly, through a slot 20 inthe bed 11, the vlugs 19 operating, in succession, to engage the Ilowermost lbooks in the hopper and move them out of the latter and through the stitching mechai nism hereinafter described. t Y. The chain 14 is driven by power, applied to the shaft 18 as from a continuously operating shaftv21 shown as'driven by a belt 22 engaging a pulley 23 on the shaft 21. The in- "termittent actuation of shaft 18 .is effected by the vmechanism shown in Figs. 5, V6,7,and 8 and comprising a shaft 24 journalled in a housing. 25 carried by the frameof the ma- I shaft, thereby" lchine and having a bevel gear 26 meshing with a bevel gear 27 on shaft 21. The shaft 24 is provided with a worm wheel 28 of the construction shown in Figs. 6, 7 and 8 and in the form of a mutilated worm comprising a rib 29 extending peripherally about the shaft 24 with its ends represented at 30 and 3l delected in opposite directions and spaced apart as represented at 32 to form a sectional spiral groove. The mutilated worm 28 meshes with a gear 33 rigidly secured to the shaft 18, the construction of this drive mechanism being such that for eachrotation of the shaft 24 the gear 33 and shaft l18 are rotated a distance e ual to the distance between adjacent teeth of this gear, the shaft y18 being thus moved throughout a portion only of a complete rotation of the shaft 24, namely, throughout substantially one-quarter revolution only of this producing an intermittent movement of the conveyor14.

The machine also comprises chain stitch sewing mechanism which, except as to the features hereinafter describedis of the same construction as the commonly known wax thread type of sewing machine, the sewing -j machine mechanism shown comprising,'gen erally stated,a depending reciprocating borthe needle, drawing the thread in looped coning tool, -which by way. of example vand as shown, may bean awl, arranged in vertical alinement with an upwardly extendingreciprocable hook needle, the awl, in descending,

operating 'to' penerate the work rand. the

needle operating through the hole made by theawl and by hooking over the Y'thread at the upperside of the work, in the lowering of dition downwardly through the opening, the needle and awl operating in `timed relation to perform the operation stated.

In-machines of the wax thread-type asy commonly provided the needle is caused to operate not only as stated, but alsoback and forth inthe v:line of'feed of the work While extending into the openingproduced by the awl, to eifect feedofthe work, but as'the* above referred to back and forth movement of the needle :is not desirable in book sewing I dispensewith the mechanism producing such movement of the needle, whereby the needle remainsat all times in vertical alineinent with the awl, and feed the work by the conveyor mechanism above described.

Furthermore, while I retain the mechanism which operates to reciprocate the awl, Ihave supplemented such mechanism with mecha-k nism whereby the awl, while engaging the v books, is caused to rotate therein to thereby reduce the amount of powerrequired to drive the awl'through'the books. i v

In the machine shown the'sewing machine proper is represented at 34, the reciprocating and rotating awl at 35, and the needle at 36.

As the mechanism for reciprocating the awl' and needle in properly timedrelation to effect vpresser foot 34 is raised.

y the boring and the stitch-forming operations in Fig. 3. The presser-foot 34, in accordance with machines of the common form above referred to, is reciprocated in timed relation to the needle. and rawl to engage-the books during the operation of the needle-and awl and be raised to books when both the needle and awl are in withdrawn position. y

The awl 35 its reciprocated by means of a pitman 38 pivoted at its lower end, as indicated at 39, to an awl-holder 40 which is guidingly mounted, at-its upper end, to reciprocate, the' upper end of the pitman 38 being journalled on the pin 41 ofa crank 42 sccured to the end of the shaft 37 The 'guide for the upper .end of the awlholder 40 comprises, in accordance with the illustrated embodiment of my invention and constituting a feature not present in the c om-y the reciprocation ofthe holder 440Y in the shaft 43 and along the keys y46.

, The `shaft 43 is provided with apuiieyis which is connected by zan endless belt 49 with apulley 50 on the drive shaft 51 of a motor represented at 52 and mounted on the body of the machine.

rIhe `intermittent `drivel mechanism for the conveyor 14 is so constructed and timed relative to the operationof the sewing machine proper that the conveyor chain operates to feed the books only during those periods when both'the awl and the needle are in With-` permit of the feeding of the opposite ends thereoft ie keys 46 extending.

' 100 provided internallywith drawn position relative to the books and the Assuming that the conveyor 14 has fed the forwardmost one of the books removed from the hopper, into the space between theneedle and the awl, and that the book is at rest, the pi esser foctr34a lowersinto engagement with the awl thenrising and the -needle'moving and hooking over the thread at the upper side of'the presser foot 34 and represented at 53. The needle then descends, while,the awl 35 remains in raised position, drawing the looped thread downwardly through the hole in the book. The presser foot 34 then rises and the conveyor 14 operates to advance the books along the bed a predetermined distance equal to the length of stitch which it is'desired be produced in the book. Following the discontinuation of the feed as stated, the presser-foot, awl, and needle again operate to repeat the operations ]ust clescribe and the books again advanced a distance equal to the length of stitch to be made, these operations continuing as long as books continue to be supplied to the hopper.

Commenting on certain advantages of a machine constructed in acocrdance with my invention, it will be noted that thereby a book may be sewn with a lock stitch, without danger of impairment of the parts, including the needle; that by providin the -conveyor which not only feeds the boo s from a pile thereof to the sewing mechanism but also constitutes the feed for the books'in passing through this mechanism by which they are sewed, the books are vfed to the sewing mechanism in accurately timed relation to the operation of the latter ensuring the location of the rst stitch for each book at the proper point for avoiding the production of an unsightlygrooveacross the end of the book in, the trimming operation; and that by providing for the vertical alinement of the awl and needle at all times, danger of the catching of the hook of the needle on the edge portion of the hole produced by the awl is prevented.

While I have illustrated and described a particular construction embodying my invention, I do not wish to be understood as intending to limit it thereto as the same may be variously modified and altered without departing from the spirit of my invention.

What I claim as new, and desire to secure by Letters Patent, is:

1. In a sewing machine, the combination `of a reciprocable needle, means for forming `a hole in the work in axial alinement with said needle, means for reciprocating said needle, and intermittently operating means for feeding the work through the machine when said firstnamed means and needle are withdrawn from the work.

2. In a sewing machine, the combination of a reciprocable needle, a reciprocable and rotatable boring tool in axial alinement with said needle, means for reciprocating said needle, means for reciprocating and rotating said tool, and intermittently operating means ,for feedin the workthrough the machine when saidioring tool and needle are withdrawn from the work.

3. Inav chain-stitch sewing machine, the combination of areciprocable hook-needle, means for forming a hole inthe work in axial alinement with said needle, means for reciprocating said needle, and intermittently operating means for feeding the Work through the machine when said first-named means and needle Vare withdrawn from the work.

4L In a chain-stitch sewing machine, the

`combination of a. reciprocable hook-needle, a

reciprocable andr rotatable boring tool in axial alinement with said needle, means for reciprocatin said needle, means for reciprocating an mittently operating means for feeding the work through the ,machine when` said boring tool and needle are withdrawn from the work. V v

5. Ina book-sewing machine, the combination of a reciprocable hook-needle, means for reciprocating said needle, means for presenting the thread to the hook of the needle, a reciprocable and rotatable boring tool in axial alinement with said needle, means for reciprocating and rotating said tool, and means for feeding a book through the machine, all of said means operatin in timed f relation to first bore a hole in the ook, then project the needle through the hole and thereafter feed the book.

6. In a book-sewing machine, the combination of sewing mechanism, a hopper adapted to contain a plurality of books, book feeding means operating to feed the books one at a time from the hopper to and through said sewing machine.

7. In a book-sewing machine, the combination of sewing mechanism, a hopper adapted to contain a plurality of books and intermittently operating book feeding means operating to feed the cooks one at a time from the hopper to and through said sewing mechanism. v

8. In a book-sewing machine, the combination of means for forming a hole in the book, a reciprocatory needle positioned in axial alinement with said first-named means to 'enter the hole made by the latter, means for 'vice in axial alinement with said needle,

means for reciprocatingsaid needle, and intermittently operating means for feeding the work through the machine when said device and needle are withdrawn from the work.

10. In a sewing machine, the combination of a reciprocable needle, a hole-forming device in axial alinement with said needle, means for reciprocating said needle, means rotating said tool, and inter-- for reciprocating said device, end intermittently operating means for feedin the work through the machine when said evice and needle are withdrawn from the work. e l11.In a chain-stitch sewing machine,the combination of a reciprocable hook-needle, a hole-forming device in axial alinement With said needle, means for reciprocating said needle and intermitently operating means for feeding the Work through the machine when said device and needle are withdrawn from the Work.

12. In a chain-stitch sewing machine, the combination of a. reciprocable hook-needle, a hole-forming device in axial alinement with said needle, means for reciprocating said needle, means for reciprocating said de-l vice, and intermittently operating means for feeding the Work through the machine lwhen said device and needle are withdrawn from the work.

RAYMOND E.` ACKLEY. 

